Nikad, you are not the norm from my experiences of employing Porteños. Out of somewhere around 20 programmers that I have employed directly, or contracted with another company to use exclusivley, I have found exactly 2 that I have been able to depend on for consistently giving me between 35 and 40 hours a week. As long as there is not a holiday, of which I think there are roughly twice as many "work holidays" as there are in the States (unless you're talking banking holidays in the States!). If I'm really in a bad situation, I can usually coax as much as 45 or 50 hours for one week, maybe working an extra day on the weekend.
When I first came here to employ people, I contracted with a local company to provide a team of programmers. I found that they were routinely clocking between 25 and 35 hours every week. When I visited the place, I would invariably find one or more of my guys at someone else's desk listening to music or chatting about the futbol game or what have you. Long lunches. Continuous errands that had to be run (and most of these, I'm sure, legitimate. There are often no easy ways to get something done and it requires sometimes hours waiting in line). Sick. Vacation. Holiday.
This is one of those trade-off things that people from other cultures need to be cognizant of, and deal with. Argentinos for the most part simply care more about their family, friends and enjoying life than work. It's not that it's a laziness, it's a different focus, and there are very obviously good things to be said about it.
I know also that lack of opportunity, as Nikad and someone else posted previously, is certainly a problem. I can't imagine not having access to credit to buy a house or apartment, for example. I can't imagine being 25, say, and having to provide a guarantee from a property that I or a relative own in order to rent something decent. Heavy taxes and labor-favored (instead of market-favored) laws make it difficult to start a business and hire employees unless you work in the black and take risks.
I came for the good technical training that most programmers have here and the difference in labor prices between the States and Argentina. I have had a very hard time doing business here, at least at first, because of the regulations and figuring out how to get things done to a good enough level of satisfaction. I'm trying to bring money to Argentina workers, but it's almost like the government doesn't want it to happen.
I am still here because it is workable and I like the personal freedoms that Argentine society gives one. But there are always tradeoffs in where you are living because nowhere is perfect.